26999648 has 48 divisors (see below), whose sum is σ = 58677696. Its totient is φ = 12149760.

The previous prime is 26999647. The next prime is 26999669. The reversal of 26999648 is 84699962.

It is a self number, because there is not a number n which added to its sum of digits gives 26999648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26999641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16265 + ... + 17847.

It is an arithmetic number, because the mean of its divisors is an integer number (1222452).

Almost surely, 2^26999648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26999648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29338848).

26999648 is an abundant number, since it is smaller than the sum of its proper divisors (31678048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26999648 is a wasteful number, since it uses less digits than its factorization.

26999648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647 (or 1639 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 53.

The square root of 26999648 is about 5196.1185513804. The cubic root of 26999648 is about 299.9986962906.

The spelling of 26999648 in words is "twenty-six million, nine hundred ninety-nine thousand, six hundred forty-eight".